Quarterly report pursuant to Section 13 or 15(d)

STOCKHOLDERS' EQUITY (Detail Textuals)

v3.19.2
STOCKHOLDERS' EQUITY (Detail Textuals) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 9 Months Ended
Jan. 15, 2019
Jan. 18, 2019
May 31, 2019
May 31, 2018
Aug. 31, 2018
Stockholders Equity [Line Items]          
Preferred stock, shares authorized     10,000   10,000
Preferred stock, par value (in dollars per share)     $ 0.001   $ 0.001
Preferred stock, shares issued     0   0
Preferred stock, shares outstanding     0   0
Common stock, shares authorized     265,000   265,000
Common stock, par value (in dollars per share)     $ 0.001   $ 0.001
Common stock, shares issued     88,840   78,273
Common stock, shares outstanding     88,840   78,273
Common Shares          
Stockholders Equity [Line Items]          
Number of stock issued to investor in exchange for cash     9,077 5,877  
Value of stock issued to investor in exchange for aggregate net proceeds     $ 41.6 $ 16.4  
Securities purchase agreement (the "Purchase Agreement") | Certain accredited investors (the "Purchasers")          
Stockholders Equity [Line Items]          
Number of shares sold to investors 6,476        
Common stock, par value $ 0.001        
Number of warrants issued 3,238        
Warrants exercise price $ 5.75        
Combined per share purchase price for a share of Common Stock and half of a Warrant   $ 5.25      
Gross proceeds from the Offering   $ 34.0      
Net proceeds from the Offering   $ 31.2